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What is the weather like in Trondheim?

Temperature and precipitation month by month at the Voll weather station.

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Short answer

Trondheim has cool summers and winters close to freezing, with normals of almost 15 °C in July and just below 0 °C from December to February. Precipitation is moderate: the monthly normals at the Voll station add up to 871 mm a year, about a third of Bergen's. The figures are 1991–2020 normals from Yr.

Trondheim a round calendar wheel with four seasons shown as a snowflake, a leaf, a sun and a raindrop around a small mountain

Why

  1. At Trondheim (Voll) the 1991–2020 normal is 14.8 °C in July, the warmest month, and −1.2 °C in February, the coldest.
  2. The winter months December to February all have normals between −0.9 °C and −1.2 °C.
  3. April (49 mm) and May (50 mm) are the driest months, and September (90 mm) is the wettest.

Details

Spring warms up slowly: the normal rises from 0.7 °C in March to 8.5 °C in May. Autumn cools from 10.6 °C in September to 2.1 °C in November. Bergen, by comparison, has monthly normals that add up to about 2,500 mm of precipitation a year.

Tip

Pack layers and a waterproof jacket in every season, and add warm shoes, a hat and gloves for the winter months.

What may differ

The figures are for the Voll station, 127 metres above sea level. Single months can differ a lot from the normal: January 2026 averaged −6.1 °C there, against a normal of −1.0 °C.

People also ask

  • What is the climate like in Trondheim?

Sources

Information checked on 15 October 2026.

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